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Finding the Fourth Proportional to 5,364.78, 7,403.78 and 2,974.88

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Solution

The fourth proportional to 5,364.78, 7,403.78 and 2,974.88 is: 4,105.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,364.78 : 7,403.78 = 2,974.88 : x
  2. Step 2: Convert to fraction form
    5,364.78/7,403.78 = 2,974.88/x
  3. Step 3: Cross multiply
    5,364.78x = 7,403.78 × 2,974.88
  4. Step 4: Simplify right side
    5,364.78x = 22,025,332.98
  5. Step 5: Solve for x
    x = 22,025,332.98/5,364.78
  6. Step 6: Final answer
    x = 4,105.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.